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E: P. KILROY HYDROCARBON OIL BURNER Filed Jn. 16,' 1922 Patented MarolQZ unirse stares PATENT our l ti E EVAN P. KILROY, 0F JOPLIN,lvlOlTTliNA.

HYDnocAnB'oN-OIL BURNER.

Application led January 1G, 1922. Serial No. 529,635.

To all w/zom t may concern:

Be it known that l, EVAN P. KILROY, a citizen of the United States,residing at Joplin, in the county of Libertyy and State of Montana,'have invented certain new and useful improvements in Hydrocarbon-0ilBurners 5 and l do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable those skilled inthe art to which it-rappertainsVr to make and use the same.

The present inventiony relates toghydrocarbon burners. y

An object of the presentinvention is to provide a burner which isadapted to feed a quantity of air to the centralportion' of a flame forinsuring complete and satisfactory combustion of thelbody of gas/issuing`from the burner opening from center to' circum-r ference y and to ,thusproduce a burner which is not only more efficient, butwhich is capableof radiating more heat. y

it is well known that in prior oilburners at present in use,'-thecenterk of the' iiame is usually of a' dull blue color while the outerportion of the flame is of a bright red nor yellow color, and isfarhotter than theinside or blue portion...y j i lt is therefore anotherobject of this invention to do away with this dull bluecentral portionof the ame and to render the flame of an even glowing white color and ofn correspondingly increased heat intensity resulting in the morethorough andcoinplete combustion of the gas or vaporfand conse-p quentlya more efficient burner from the standpoint of fuel consumption `andfrom the standpointof production of heat energy.y

The present invention further aims at the provision of a ynovel devicefor,feedingylairto the 'central portion of the llamek for prometingcombustion thereat. p

A still further object of the invention is to provide a novelcombination of fuel and air feeding pipes for automatically yaporiz` ingor gasifying the liquid fuel and for heating the air prior to deliveryto the middle of the` burner and also for protecting suchvaporizingandair heating pipes from the intensity of the flame at suchportions of the pipes which pass through the flamef The inventionfurther aims at theprovi# sion of a burner of this type, whichpossessesthe above enumerated characteristics, and which may be used in the firebox of a stove and which may be supported upon the grate n perforationv16.

. out the several views,

F ig. 1 is a side elevation partly in section,

mofa burner constructed according to the present invention and shown asresting upon grate bars of conventional form; and,

Fig. 2 is a top plan viewthereof. Referring to the drawing, the burnercomprises a base platelOwhichz is of any suitable construction and/whichpreferably has a marginal,'dependingfiange 11 arranged for spacing thebody portion of the plate 10 above a support toperinit free access andcirculation of air atvthetunder side of the plate. Thel plate 10 vmayAbe of elongated rectangular construction as shown, and is adapted to befitted in the fire box of astove or the like andy to be ysupported upon4grate bars 12.

ing pyramidal projection 13 forming an air feeding mouth and the endwalls of which are slotted or recessed as at 14 to receive u The plate10 is provided with an upstandi therethrough the horizontal portion 15of vaporizing pipe, the portion 15 having a jet or outlet perforation 16in its upper side and at the central portion of .the rpyraniidal mouth13. The projection ,13 has a relatively large upper open end y17`providing ample'air space beneath and about the pipe ,portion 15, soythat airis permitted to freely co-n'ii'ngle with the gas escapingthrough the The vaporizing` pipe 15 has one end turned downwardlythrough a slot 18 formed in one end of the plate 10 and extending fromthe vbase of the mouth 13 to the adjacent extremity of the plate, thelower end of the pipe 15 being closed by a cap 19 for inaintaining vaporor gesunder 'pressure in the pipe. The other end of the pipe 15 iscurved upwardly or returned in spaced relation above the portion 15, asat 20, and such re- .turn portion 20 extends beyond the closed end ofthe pipe 15 and is carried downwardly through such slot 18 in the plate10. This latter end of theV pipe is the inlet end and is externallythreaded as at 21 to receive thereon adjusting and supporting nuts 22which are clamped against opposite sides of the plate 10, the upper nutpreferably having an interposed bracket plate 23 beneath the same andwhich is adapted to project beyond opposite sides of the slot 18. rlhelower extremity of the threaded portion 21 of the vaporizing pipecarries a reduction coupling 24 to which is connected a relatively smallfuel feeding pipe 25 adapted to conduct kerosene or other suitablehydrocarbon to the vaporizing pipe. 1f desired, the threaded end 21 ofthe pipe may have metal filings or other suitable thread-like substance26 therein for breaking up the fuel and for insuring the heating andfiltering of the same as it passes into the vaporizing pipe.

rl`he other end portion of the plate 10 carries an air feeding pipe 27.The pipe 27 has a substantially vertical or shank portion, the lowerextremity of which is threaded, as at 28, and is adjustably securedthrough a perforation in the plate 10 by clamping nuts 29 which bindagainst the opposite sides of the plate 10. The air pipe 27 maytherefore be secured in various vertically adjusted positions throughthe plate 10 and may also be swung upon its longitudinal axis intovarious angular positions with respect thereto. The lower end of thepipe 27 is closed by a threaded cap 30 and the latter carries upon itsupper end a yieldable washer or gasket 31 against which is adapted toseat the lower end of a sleeve valve 32 mounted on the threads 28 andadapted to be turned for movement lengthwise upon the pipe 27, towardand from the yieldable seat 31. The pipe 27 has one or more perforations33 in its side immediately upon the seat or gasket 31, and such openings33 are adapted to be more or less uncovered by raising the sleeve valve32 upon the threads 28.

The upper end of the pipe 27 is curved or bent laterallyto form anover-hanging portion 34, the free extremity of which is curveddownwardly with its axis substantially co-axial with the axis of themouth 13, when the air pipe is adjusted as shown in Figs. 1 and 2. Theover-hanging portion 34 is threaded at its lower end andk supports acombined spreader and air feeder. The spreader and air feeder iscomposed of a pair of disks 35 and 36 which are secured together byrivets 37 and spaced apart by washers 38 carried upon the rivets 37 andinterposed between the disks 35 and 36. The disk 35, shown as the upperdisk, has an internally threaded sleeve portion 39 which is threaded onthe pipe 34 and the sleeve 39 opens through the disk 35 so as to conveyair from the pipes 37 and 34 to the space between the disks 35 and 36.|The lower disk 33 has a central depending projection 40 of conicalconfiguration providing a deflector adapted to spread the flame or gaswhich rises from the perforation 16 to not only enlarge thev frame forthe purpose of insuring complete combustion, but also for protecting theover-hanging portion 34 ofthe air pipe and the return portion 20 of thevaporizing pipe, which latter is adapted to extend across 4the top ofthe combined spreader and air feeder.

In operation, fuel is admitted through the pipe 25 to the vaporizingpipe 26, 15. The combustion of the gas issuing from the jet opening 16heats the over-hanging portion 2O of the vaporizing pipe and vaporizesthe hydro-carbon and places the vapor or gas thus formed underconsiderable pressure in the pipe portion 15. The gas under pressureissues from the opening 16 and rises with considerable force against thespreader which deflects the gas or fiame outwardly about the marginaledges of the disks 35 and 36. The heat of the flame as well as thesuction produced at the middle portion of the flame creates a suction inthe pipe 27 with the result. that air is drawn in through the openings3.3 and is caused to rise in the pipe 27, be heated in the overhangingportion 34, and finally distributed uniformly from the spreader anddeflector to supply air to the middle portion of the flame. The quantityof airdelivered to the middle portion of the flame may be regulated byraising and lowering the sleeve valve 32'for more or less covering theopenings It is apparent that the base plate 10 may be seated in the firebox of a stove withthe flange 11 of the base plate resting upon thegrate bars 12. 1n this position, the ends of the vaporizing and airfeeding pipes project downwardly between the grate bars so that the fuelpipe connection 25 may be made in the ash pit and the burner may receiveair upwardly through the mouth 13 from the ash pit as well as throughthe pipe 27 from the ash pit. This permits the desired regulation of theburning of the flame by regulating the usual air checks or registers inthe doors of the ash pit and fire box compartments.

It will also be apparent that the air pipe 27 may be adjusted as aboveexplained, and the vaporizing pipe may also4 be adjusted not onlyaxially upon the nuts 22, but lengthwise in the slot 18, the slot 18facilitating the assemblage, knocking down and regulating of the partsof the burner.

It is obvious that various changes and modifications may be made in thedetails of construction and design of the above specifically describedembodiment of this invention without departing from the spirit thereof,such changes and modifications being restricted only by the scope of thefollowing claims.

What is claimed is:

1. In hydro-carbon burners, al base plate,

beneath the upper portiony thereof fory providing a flame Within theloop, an pipe mounted upon the base plate and having any over-hangingportion projecting Aover said f perforation in the vaporizinfi,r pipe,and

spreader on the lovver end of said air piper over said perforationadapted to spread the flame Within the upper portion of said loop,

substantially as described. l

2. A hydro-Carbon burner comprising a vaporizing pipe having a lowerportion and an upper return portion, said lov/er portion having aperforation therein through which gas is adapted to escape to provide aarne' beneath said upper portion, an air pipe having one end projectingdownwardly in hne with said perforation, a spreader connected to thelovver end Lof the air pipeand arranged over the perforation adapted tospread the flame, said spreader having radial openings thereincommunicating with said air pipe adapted to supply air to the interiorportion of the spread flaine, substantially as described.

3. A hydro-carbon burner comprising a burner tube adapted to provide aflame, an air tube having a depending portion adapted to aline with' theflame, a spreader on the lower end of the air tube orspreading the flameand having radial openings communieating With the kair tubel Jforfeeding air t0 the interior portion of the spread flame, and

an adjustable valve mounted on the air tube for controlling the passageof air therethrough to the interior of the flame, substantially asdescribed.

nvAN P. iriLnoY.

